K-PSFn215 by Sumita

Obsolete Very Rare Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.4–1.55 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.4–1.55 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.400–2.000 µm
Optical Properties
Refractive Index (nd) 2.154
Abbe Number (Vd) 17.2
Dispersion Formula Schott
Wavelength Range 0.4 — 1.55 µm
$$n(\lambda) = \sqrt{4.29941 - 0.0140914\,\lambda^2 + 0.0978551\,\lambda^{-2} + 0.00768577\,\lambda^{-4} - 0.000467868\,\lambda^{-6} + 0.000122187\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.6
TCE 100/300°C (10-6/K) 10.1
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.64 \times 10^{-5} + 2(4.6 \times 10^{-8})\,\Delta T + 3(-2.91 \times 10^{-10})\,\Delta T^2 + \frac{3.47 \times 10^{-6} + 2(-3 \times 10^{-9})\,\Delta T}{\lambda - 0.301}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 7.1
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance —
Acid Resistance 5
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
E-FDS3 Hoya 2.1042 17.02
E-FDS3-W Hoya 2.1042 17.02
L-BBH2 Ohara 2.102999 18.051064
L-BBH1 Ohara 2.101949 16.785097
LINBO3-E Generic Birefringent 2.214539 20.455966
TAFD75-W Hoya 2.102 23.39
TEO2 Generic Birefringent 2.274935 16.22277
PBMOO4-E Generic Birefringent 2.277375 15.77258
TAFD65 Hoya 2.0509 26.94
H-ZLAF96 CDGM 2.0509 26.985858
Similar Glasses (Sumita)
Glass Manufacturer nd Vd
K-PSFn173 Sumita 2.1478 17.3
K-PSFn173(M) Sumita 2.14342 17.3
K-PSFn214P Sumita 2.144 17.8
K-PSFn214 Sumita 2.14355 17.8
K-PSFn214P(M) Sumita 2.13919 17.7
K-PSFn214(M) Sumita 2.13909 17.7
K-PSFn202P Sumita 2.0216 21.4
K-PSFn202 Sumita 2.0196 21.5
K-PSFn203 Sumita 2.017 20.8
K-PSFn202(M) Sumita 2.01365 21.4
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